NATURAL HISTORY · CATALOGUE RECORD
Manabi Hognose Pitviper
Porthidium arcosae Schätti & Kramer, 1993
Source-backed taxonomic record
Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.
Open encyclopedia reference
Porthidium arcosae, or the Manabí hognose pitviper, is an endangered species of hognose pit viper endemic to the central Pacific coast of Ecuador. Originally considered a subspecies of P. lansbergii, P. arcosae was elevated to species rank in 1993.
Wikipedia contributors, Porthidium arcosae; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T10:32:55.271662+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Porthidium arcosae Schätti & Kramer, 1993
- Name authority
- Schätti & Kramer, 1993
- Common name
- Manabi Hognose Pitviper
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Reptilia
- Order
- Squamata
- Family
- Viperidae
- Genus
- Porthidium
- Extinction status
- Not supplied by this source
Classification family tree
Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.
- domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
- kingdomAnimalia
- phylumChordata
- subphylumVertebrata
- infraphylumGnathostomata
- parvphylumOsteichthyes
- megaclassTetrapoda
- classReptilia Laurenti, 1768
- orderSquamata Oppel, 1811
- suborderSerpentes Linnaeus, 1758
- infraorderAlethinophidia Nopcsa, 1923
- familyViperidae
- subfamilyCrotalinae
- genusPorthidium
- speciesPorthidium arcosae Schätti & Kramer, 1993
Close classified relatives
These entries share the source’s genus, Porthidium. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Porthidium lansbergii (Schlegel, 1841) | ViperidaeChordata | Accepted speciesExtinction status not supplied |
| Hognosed Pit ViperPorthidium nasutum (Bocourt, 1868) | ViperidaeChordata | Accepted speciesExtinction status not supplied |
| Slender Hognose ViperPorthidium ophryomegas (Bocourt, 1868) | ViperidaeChordata | Accepted speciesExtinction status not supplied |
| Porthidium porrasi Lamar, 2003 | ViperidaeChordata | Accepted speciesExtinction status not supplied |
| Porthidium volcanicum Solórzano, 1995 | ViperidaeChordata | Accepted speciesExtinction status not supplied |
| Dunn's Hognose ViperPorthidium dunni (Hartweg & Oliver, 1938) | ViperidaeChordata | Accepted speciesExtinction status not supplied |
| Western Hognose ViperPorthidium hespere (Campbell, 1976) | ViperidaeChordata | Accepted speciesExtinction status not supplied |
| Yucatán Hognose ViperPorthidium yucatanicum (Smith, 1941) | ViperidaeChordata | Accepted speciesExtinction status not supplied |
Documented distribution
Source distribution statements, not a complete range map. A listed locality is not necessarily a place of origin.
Source literature & publication evidence
References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.
- https://reptile-database.reptarium.cz/species?genus=Porthidium&species=arcosae Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references
Origins, evidence & remaining research
Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.
Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record. A suitable sourced image remains to be added.
Dataset citation & attribution
This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11
Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.
Stable key: col:4M22C. Classification follows source parent identifiers. English common names may vary by region.